2SB562-B-AP Equivalent & Substitute Parts

Part Overview

The 2SB562-B-AP is a PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for small-signal switching and amplification applications. This component features a maximum collector current of 1 A, collector-emitter breakdown voltage of 20 V, and a power dissipation rating of 900 mW in a Through Hole TO-92 package.

The 2SB562-B-AP is classified as an obsolete product. Locating equivalent or substitute components is necessary to support ongoing maintenance, repair, and redesign efforts for legacy systems and applications that originally incorporated this transistor.

Substiute Parts

2SB562-B-AP

Micro Commercial CoIn Stock: 7942SB562-B-AP Datasheet

Current PartRFQ

SS8550CTA

Fairchild SemiconductorIn Stock: 41321SS8550CTA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SB562-B-AP is determined by strict electrical and mechanical compatibility criteria. A valid substitute must satisfy the following conditions:

Mandatory Substitution Criteria:

1. Transistor Type: Must be PNP configuration
2. Package / Case: Must be TO-92-3 (TO-226AA) Through Hole package with formed leads
3. Mounting Type: Must be Through Hole
4. Collector Current (Ic): Substitute maximum rating must equal or exceed 1 A
5. Collector-Emitter Breakdown Voltage (Vce): Substitute maximum rating must equal or exceed 20 V
6. Power Dissipation: Substitute maximum rating must equal or exceed 900 mW
7. Vce Saturation: Substitute must meet or exceed saturation performance at specified bias conditions
8. Operating Temperature Range: Substitute must support the full operating range of -55°C to 150°C

The SS8550CTA meets all mandatory substitution criteria and is classified as an active product with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

2SB562-B-AP (Original Component)

The 2SB562-B-AP is classified as obsolete. This component is ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited). Current inventory availability is limited to existing stock.

SS8550CTA (Active Substitute)

The SS8550CTA is an active product manufactured by Fairchild Semiconductor with substantial current inventory availability. This component is suitable for direct substitution in applications where the 2SB562-B-AP is no longer procurable.

The SS8550CTA provides electrical performance that meets or exceeds the 2SB562-B-AP across all critical parameters: collector current, breakdown voltage, saturation characteristics, and current gain. The substitute features improved leakage current performance (100 nA versus 1 µA) and higher power dissipation capability (1 W versus 900 mW).

The transition frequency of the SS8550CTA (200 MHz) is lower than the original component (350 MHz). This difference is relevant only in applications where high-frequency switching performance at or above 200 MHz is a design requirement. For standard switching and amplification applications operating below 200 MHz, this parameter difference does not affect functional compatibility.

Both components share identical package geometry (TO-92-3), mounting type (Through Hole), and saturation voltage characteristics, ensuring direct mechanical and electrical interchangeability in circuit board layouts.

Frequently Asked Questions (FAQ)

Q: Can the SS8550CTA be used as a direct replacement for the 2SB562-B-AP?

A: Yes. The SS8550CTA meets all mandatory electrical and mechanical substitution criteria. Both components are PNP transistors in TO-92-3 packages with identical saturation characteristics and compatible operating temperature ranges. The substitute provides equal or superior performance across all critical parameters.

Q: What is the significance of the lower transition frequency in the SS8550CTA?

A: The SS8550CTA has a transition frequency of 200 MHz compared to 350 MHz for the 2SB562-B-AP. This parameter defines the frequency at which current gain begins to degrade. For applications operating below 200 MHz, this difference has no practical impact. Applications requiring switching or amplification above 200 MHz must evaluate whether the reduced frequency response affects circuit performance.

Q: Are there any package or pinout differences between these components?

A: No. Both the 2SB562-B-AP and SS8550CTA use the TO-92-3 (TO-226AA) package with formed leads. The physical dimensions, lead spacing, and pinout are identical, enabling direct substitution without circuit board modifications.

Q: What is the difference in leakage current between these transistors?

A: The 2SB562-B-AP has a maximum collector cutoff current (ICBO) of 1 µA, while the SS8550CTA is rated at 100 nA. The SS8550CTA exhibits lower leakage current, which may provide improved performance in low-power or precision applications where leakage current contributes to circuit noise or power consumption.

Q: Is the SS8550CTA suitable for high-temperature applications?

A: Both components support an operating temperature range up to 150°C. The SS8550CTA is suitable for applications requiring operation across the full temperature range of -55°C to 150°C, matching the thermal capability of the original 2SB562-B-AP.

Q: What is the compliance status of the SS8550CTA?

A: The SS8550CTA is classified as an active product with current manufacturing support. Compliance information specific to RoHS status and Moisture Sensitivity Level for the SS8550CTA is not provided in the available technical data.